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Voting Machines and the Underestimate of the Bush Vote

A series of claims have been made in recent days alleging that discrepancies between exit poll results and the presidential vote in certain states provides evidence of malfeasance in those states. These claims seem to be concentrated on states using electronic voting systems.

Exit polls predicted a significantly greater vote for Kerry nationwide than the official results confirmed, but there is not any apparent systematic bias when we take this same analysis to the state level.

Analysis of deviations between the exit polls and the official returns show no particular patterns for states using electronic voting; nor does this analysis reveal any patterns for states using other forms of voting systems.

We conclude that there is no evidence, based on exit polls, that electronic voting machines were used to steal the2004 election for President Bush.